Correlated n1,3S states for two-electron atoms in screened potentials

28th International Conference on Photonic, Electronic and Atomic Collisions

Ancarani, L.U.^1 ; Rodriguez, K.V.^2,4 ; Gasaneo, G.^2,4 ; Mitnik, D.M.^3,4

Equipe TMS, SRSMC, Université de Lorraine, Metz

57078, France^1

Departamento de Física, Universidad Nacional Del sur, 8000 Bahía Blanca, Buenos Aires, Argentina^2

Instituto de Astronomía y Física Del Espacio, Universidad de Buenos Aires, Buenos Aires, Argentina^3

Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina^4

关键词: Configuration interactions;    First excited state;    Mean values;    S state;    Screened Coulomb potentials;    Two-electron atoms;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/15/152015/pdf
DOI  :  10.1088/1742-6596/488/15/152015

来源: IOP

【 摘 要 】

Two-electron atoms in screened and exponential cosine screened Coulomb potentials are studied. We have calculated within a Configuration Interaction approach, the ground and first excited states energies, and other mean values, for H-, He and Li+. We analyze their evolution with the screening parameters, and provide practical fits which allow for a practical and rapid evaluation for plasma applications.